S54 swap into e36 EP23: Tuning on the Dyno w Apex (formerly Suja 2) Motorsports

We were able to get the motor a very linear HP curve!
Caveat 1: Data is on E60 fuel as that is what the E85 pump gave me with a little bit of 93 still in the tank
Caveat2: 93 was used for ignition and AFR, so not optimized for the E85 as I am using the APEX85 piggy back system
We modified a set of tables 2 years old that I have based on the need to get the E85 and injector update working. Sofware used was Renovelo
This motor has never been tuned, but I did mess with the tables some to no known effect prior, because I was dumb! Now we know what, where, when to tweak ~
Caveat3: The "dynocom" brand is said to read low on the intertube web nets
Caveat4: The dyno likely should have been loaded to get a better indication above 7K to 8K. The car rips so hard there it became undersampled and we were happy with what we saw and did not think to do more with that. The behavior of the curve is the thing. The car is linear for sure.
Carlo of Suja 2 Motorsports is relentless at the tweaks and very easy to work with.
Icebag! Don't laugh we were chasing a problem we didn't understand so were a bit mental. But also the hot sun was on the box!! :D
Caveat5 the exhaust is "special" but has a rogue DMS at the end.

[@megas4456]

Does the S54 seem to respond well to E85? Any torque increases? Etc etc

[@samthing4thetrack806]

Would like to see your dyno curve! In this condition, there is no spark "advance" from TDC as I have the piggy back which can use any level of alcohol in the fuel, plus appropriate injectors and pump. that day it was E60 but I have had up to E77. if advance could be dialed in for the E level it would be optimal. There are TQ increases for sure with more lower. The runs prior to E60 were around 294 Wheel HP before being optimal, in the interest of time E60 was what we ended up for the end runs with the final touches. Cam phasing won't change due to fuel but timing can be optimized